Filter



.oaf 11, 1.932. Q ...ENMNGS 1,882,078

FILTER Filed NOV. 20, 1930 lNvENToR OSCAR HEN NINGS ATTORNEYS Patented Oct. 11, 1932 STATES f maare FILTER Application led November 20, 1930. Serial No. 496,883.

This invention relates to improvements in filters Vand more particularly to water filters of the kind wherein the filter bed includes a permeableblock of carbon or similar filtering 1 material as the final filtering medium through which the water passes before reachingthe filter outlet, said block having a bore or cavity open to the filter outletand which the water can enter only by penetrating the Carbon body of the bloc v The invention contemplates the' provision of improved means for removably supporting the carbon block in the filter casing spaced from the sides7 top and bottom of the casing with the water discharge bore or cavity open to the filter outlet and vefficiently sealed from communication with the interior of the cas`- ing except through the porous material of the block; the provision of simple and effective block supporting meansfor ydetachably clamping the block, which means is readily mountable in and removable from the casing with the block clamped therein; and the provision of a carbon block and block-holding asf sembly for 'detachably maintaining the block in the filter casing with its cavity discharge connected with the filter outlet and sealed from the interior of the casing, which assembly is so constructed that liability of derangement of the block in handling or ship-ping of the filter is reduced to a minimum as is liability of breaking down of the support with the resultantblock derangement and block cavity seal rupture as a consequence of electrolytic action 1n the'filter.

The invention also contemplates the provision of aI detachable support or frame having a water discharge portion connectible with the filter outlet, which framehas provisions for removably clamping the carbon block therein with its bore or cavity open to the water discharge outlet of the frameand for sealingthe block bore or cavity from open communication with the interior of the filter casing.

Other objects and advantages ofthe invention will appear from the followingdescription in detail of a. preferred embodiment thereof shown in the accompanying drawing, in which F ig. 1 is a top plan view of the filter with the cover portion of the filter casing partlybroken away and all of the-lter bed except the carbon block omitted; v

Fig. 2 a vertical sectional view of thecoin-l 55- plete filter taken on the line 2 2 of F ig.\1;

Fig. 3 a detail view showing in perspective parts of' the block mounting and the'cas ing outlet member or nipple tol which the frame is detachably connectible; and v o Fig. 4 a side elevation of the filter mounted A` on a wall. 7

The filter casing comprises an open top receptacle or main body portion 10 and a sha-llow or relatively flat dome-shaped detachable cover portion 11j the two portons'having hor-Y i izontal marginal flanges 12 and 18 through which extend the shanks of clamping bolts 14 having nuts 15 screwed thereon, an annular rubber gasket or packingV vring 16 being 7o clamped between the flanges. L

The bottom of theI casing is formed with a centrally `located pendent hollow boss 17 into the upper yend of which is screwed an outlet fitting or nipple 18 having an internally 75 threaded upperportion 18EL projecting a substantial distance upward from the bottom of the casing. The discharge conduit for puri'- fied water includes a pipe 19 which may be connected by a suitable. elbow union with a nipplel or union 20 the upper end of which is screwed up `into'looss 1.7 tightly against the lower end of outlet nipple 18 for securely locking the latter nipple to the casing to perl mit screw connection and disconnection of' the 85 carbon block holding frame from the casing without disturbing nipple 18.

The casing is formed with a central up wardly extending hollow boss 21 through which is `screwed the lower portion of a 99 water inlet nipple or union member 22, the upper portion of which may be connected by a suitable elbow union with a supply pipe 23v for the water to be filtered. n

The filter bed includes a hard carbon block 24, spaced from the top, bottom and sides of the casing, as the final filtering medium, the water to be filtered passing through initial liltering material packed around the block. In the particular lter shown the bed includes ,M0

coarse charcoal particles packed entirely around the carbon block, as shown at 25, k`a layer of crushed flint 23m the dome cove-r l1., a layer 27 of line granulated carbon particles between the flint and coarse charcoal, and preferably a sheet of asbestos cloth interposed between the fine and coarse; charcoal asindicated at 28. Preferably, also, a glass spreader plate 29 for the incoming wateris arranged at the top of the tine k, cloiarcoallayer belowthe Water inlet.

K The block 24, preferably cylindrical andl Y formed ot carbon or other1 suitable filtering posed outlet nipple 18.

material, has a .water disclnrrge` cavity30 preferably in the form of an axial cylin dri cal passage Vorfbore as shown, and issupport-A e'd-in an upright, position ml thecasing withl passage 30 registering withtlie centrally diszThe blocker is aeauabiy damped in a r@- movablemetal suporting frame 31 embracing the block and located wholly exteriorly of the block,sa id frame preferably being a rectan-j V gular onehavingtwo uprightbarlikeportions at opposite sides ot'the block andunited.

. by upper and'lower cross-bar-'portions' The frame is preferablyy spaced from theblock at A all points and is preferably'fornied infone piece, as showmthe cross-bars being provided with horizontally disposed disk-like enlarged medial portions 32. and 33. Portion 33o-fthe lower cross barformsl a disk-like supporting seat fory the blockv 24 and this cross-bar "is .formed with a pendent 'externally threaded boss34 centrally located with respect toseat 33 and an axialwater discharge passage or bore 35 extends through said seat and boss.

` An adjustable clamping` bolt 36 threaded l axially down through portion 32 of the upper bore 30. Fluid proof washers 39 and 40 areV cross-bar has its rounded lower end engaged in a shallow depression37 oi concave crosssection in the upper face ot a. metal clamping disk or head 38 of lgreater' diameter tha-n'block interposed between the upper and lower ends of the block and the elampingdisk 3&5y and block seat 33 to seal the open ends of bore 30 Vfrom the interior of the casing and compel the incoming water to permeate'the carbon block and pass into bore 30 and out through the frame pa'sage 35 tothe casingldischar'ge outlet 18. i Y v L Preferably, and in the iilter shownthese washers 39 and v40 are formed ofpure rubber to afford washers that are elastic, fiuid proof, free from water contaminating ortaste-'affecting material such assulphur, and nonconductive. oiV electricity. fWhen the block and washers are asembled in `the frame'and bolt 36' screwed down on disk 38 .tocompress the washers and tightly clamp the block in the frame lthe ends of the block bore are sealed, and the supporting` frame is electrically' insulatedfrom direct contactiwitli the block and located wholly outside thebloek:

y Bly screwing boss 34 into and out of nipple` 18 the block andframe assembly vmay readily beV connected with and disconnected from the casing. A rubber gasket 41V is preferably interposed between the upper end of nipple 18e-13l and the lower face of seat portion 33 oit the lowercross bar 'of the frame. The. casing .1O--11" isv preferably formed olfl galvanized or enameled cast iron andthe frame 31, :bolt 36,A disk 38andnipples 18,

y2O and QQare'preerably ormedoftin coated brass, to resist corrosion of the metal parts.

The improved mounting for the carbon block adwordsl a strong and rigid detachable mounting which prevents or greatly reduces liability of' derangement of thev blockand breaking of the: seal orv the'water dischargefrom open communication with water that hasnot filtered through the carbon of which the blockis formed. Italso provides asnpportwhich prevents or Vgreatly reduced lia-V bility of the derangem'ent or the block and i opening oa' direct communication with the filter outlet for incompletely filteredwater Jrequency occurring in prior ilters of this type from breakingdown of the' block support or a part thereoi1 as a result of electrolytic aetionin the filter.

The body. portion ofthe lilter may be provided with anv attachment lug 42 extending to frame-passage 35, washer 40 preferably has an upstanding annular flange 48 ittable in passage 30 and a pendent annularrlange 49 fittable about a slightly raised central portion ct the block seat'portion 33 of the frame. Y f f I amnot broadly claiming in this application the means for electrically insulating the iilter block to prevent electrolysis said means are'claimed in acopending application Ser.y No. 496,882,-iled November 20, 1930.,

What I claim is 1. A filter comprising a casing having a uid inlet and a uid' outlet, and provided with an openingvfora'ording access to the interior fof the casing andy a cover for said opening, a block of permeable iltering material withinl the casing having a bore eX- tending entirely therethrough, and block supporting means located whollywit-hin the cas.-

king andY insertable in and removable tromthe,

casing through said opening with the block `saidloloclr is maintained in-spaced relation with'ftheli-'rame and plate by said gaskets each of Ywhich has an annular lange tele- K scoped in the bloelr bore, and one of which isY telescopically intertted with the' plate and the other with the lower .end portion of the frame.

13. In a filter7 the combination-of openV top receptaolehaving a fluid passage through fits bottom, a; closure for the open `top of -said receptacle, an,V upstanding lrigid frame in saidreceptacle having uprights and upperand lower connecting cross bars'betweenwhich a filtering block is insertable',v and ablockolamping screw threaded downward through the upper crossbar of said frame7 the lower cross bar having a central downward extension, said extension being de.

tachably coupled with the receptacle and having a fluid passage extending therethrough to the upper face of theoross bar Vand communicating at its. lower'end with the fluid passage through the bottom of the receptacle to connect with the latter passagea boreV in a filtering block clamped in the frame.

14:. A ilter comprising a casing having an inlet at its upper Aend and an outlet at its bottom, 'a filter.. block in said casing having a boreextending vertically into the block and opening at its lower end'throu-gh the-bottom of the said block, and a clamping device with.

vin the casing and held thereto,inv which the block is gripped and which is located entirep ly oxteriorly of the block and its bore, said clamping device eomprising a frame, an upper vvelement to press againstthe top of the block, aV pressurerlamping means mounted inthe top of the saidframe to engage the said upper clamp element, a washer of material non-conductive of electricityinterposed bek tween the bottom of the filter block andthe lower part of said frame and surrounding a fluid outlet passage ythrough said frame, said washer sealing said passage from direct communication with the interior of the casing and forming a direct luidconnection between said outlet passage and the said borerol` said e block, and means vto conneet the frame'of the clamping device to the bottom' of the 'casing to'support it andthe block, and to-place the outlet lpassage of the said frame in communication with the outlet passage of the casing. V

A In testimony whereof l hereunto aliix my signature.

` v v OSCAR HENNINGS.

Legame@ 

